/*
 * qrencode - QR Code encoder
 *
 * Copyright (C) 2006-2017 Kentaro Fukuchi <kentaro@fukuchi.org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "bitstream.h"
#include "mask.h"
#include "mmask.h"
#include "mqrspec.h"
#include "qrencode.h"
#include "qrinput.h"
#include "qrspec.h"
#include "rsecc.h"
#include "split.h"

/******************************************************************************
 * Raw code
 *****************************************************************************/

typedef struct
{
    int            dataLength;
    int            eccLength;
    unsigned char *data;
    unsigned char *ecc;
} RSblock;

typedef struct
{
    int            version;
    int            dataLength;
    int            eccLength;
    unsigned char *datacode;
    unsigned char *ecccode;
    int            b1;
    int            blocks;
    RSblock *      rsblock;
    int            count;
} QRRawCode;

static void RSblock_initBlock(RSblock *block, int dl, unsigned char *data,
                              int el, unsigned char *ecc)
{
    block->dataLength = dl;
    block->data       = data;
    block->eccLength  = el;
    block->ecc        = ecc;

    RSECC_encode((size_t)dl, (size_t)el, data, ecc);
}

static int RSblock_init(RSblock *blocks, int spec[5], unsigned char *data,
                        unsigned char *ecc)
{
    int            i;
    RSblock *      block;
    unsigned char *dp, *ep;
    int            el, dl;

    dl = QRspec_rsDataCodes1(spec);
    el = QRspec_rsEccCodes1(spec);

    block = blocks;
    dp    = data;
    ep    = ecc;
    for (i = 0; i < QRspec_rsBlockNum1(spec); i++)
    {
        RSblock_initBlock(block, dl, dp, el, ep);
        dp += dl;
        ep += el;
        block++;
    }

    if (QRspec_rsBlockNum2(spec) == 0)
        return 0;

    dl = QRspec_rsDataCodes2(spec);
    el = QRspec_rsEccCodes2(spec);
    for (i = 0; i < QRspec_rsBlockNum2(spec); i++)
    {
        RSblock_initBlock(block, dl, dp, el, ep);
        dp += dl;
        ep += el;
        block++;
    }

    return 0;
}

STATIC_IN_RELEASE void QRraw_free(QRRawCode *raw);
STATIC_IN_RELEASE QRRawCode *QRraw_new(QRinput *input)
{
    QRRawCode *raw;
    int        spec[5], ret;

    raw = (QRRawCode *)malloc(sizeof(QRRawCode));
    if (raw == NULL)
        return NULL;

    raw->datacode = QRinput_getByteStream(input);
    if (raw->datacode == NULL)
    {
        free(raw);
        return NULL;
    }

    QRspec_getEccSpec(input->version, input->level, spec);

    raw->version    = input->version;
    raw->b1         = QRspec_rsBlockNum1(spec);
    raw->dataLength = QRspec_rsDataLength(spec);
    raw->eccLength  = QRspec_rsEccLength(spec);
    raw->ecccode    = (unsigned char *)malloc((size_t)raw->eccLength);
    if (raw->ecccode == NULL)
    {
        free(raw->datacode);
        free(raw);
        return NULL;
    }

    raw->blocks  = QRspec_rsBlockNum(spec);
    raw->rsblock = (RSblock *)calloc((size_t)(raw->blocks), sizeof(RSblock));
    if (raw->rsblock == NULL)
    {
        QRraw_free(raw);
        return NULL;
    }
    ret = RSblock_init(raw->rsblock, spec, raw->datacode, raw->ecccode);
    if (ret < 0)
    {
        QRraw_free(raw);
        return NULL;
    }

    raw->count = 0;

    return raw;
}

/**
 * Return a code (byte).
 * This function can be called iteratively.
 * @param raw raw code.
 * @return code
 */
STATIC_IN_RELEASE unsigned char QRraw_getCode(QRRawCode *raw)
{
    int           col, row;
    unsigned char ret;

    if (raw->count < raw->dataLength)
    {
        row = raw->count % raw->blocks;
        col = raw->count / raw->blocks;
        if (col >= raw->rsblock[0].dataLength)
        {
            row += raw->b1;
        }
        ret = raw->rsblock[row].data[col];
    }
    else if (raw->count < raw->dataLength + raw->eccLength)
    {
        row = (raw->count - raw->dataLength) % raw->blocks;
        col = (raw->count - raw->dataLength) / raw->blocks;
        ret = raw->rsblock[row].ecc[col];
    }
    else
    {
        return 0;
    }
    raw->count++;
    return ret;
}

STATIC_IN_RELEASE void QRraw_free(QRRawCode *raw)
{
    if (raw != NULL)
    {
        free(raw->datacode);
        free(raw->ecccode);
        free(raw->rsblock);
        free(raw);
    }
}

/******************************************************************************
 * Raw code for Micro QR Code
 *****************************************************************************/

typedef struct
{
    int            version;
    int            dataLength;
    int            eccLength;
    unsigned char *datacode;
    unsigned char *ecccode;
    RSblock *      rsblock;
    int            oddbits;
    int            count;
} MQRRawCode;

STATIC_IN_RELEASE void MQRraw_free(MQRRawCode *raw);
STATIC_IN_RELEASE MQRRawCode *MQRraw_new(QRinput *input)
{
    MQRRawCode *raw;

    raw = (MQRRawCode *)malloc(sizeof(MQRRawCode));
    if (raw == NULL)
        return NULL;

    raw->version    = input->version;
    raw->dataLength = MQRspec_getDataLength(input->version, input->level);
    raw->eccLength  = MQRspec_getECCLength(input->version, input->level);
    raw->oddbits    = raw->dataLength * 8 -
                   MQRspec_getDataLengthBit(input->version, input->level);
    raw->datacode = QRinput_getByteStream(input);
    if (raw->datacode == NULL)
    {
        free(raw);
        return NULL;
    }
    raw->ecccode = (unsigned char *)malloc((size_t)raw->eccLength);
    if (raw->ecccode == NULL)
    {
        free(raw->datacode);
        free(raw);
        return NULL;
    }

    raw->rsblock = (RSblock *)calloc(1, sizeof(RSblock));
    if (raw->rsblock == NULL)
    {
        MQRraw_free(raw);
        return NULL;
    }

    RSblock_initBlock(raw->rsblock, raw->dataLength, raw->datacode,
                      raw->eccLength, raw->ecccode);

    raw->count = 0;

    return raw;
}

/**
 * Return a code (byte).
 * This function can be called iteratively.
 * @param raw raw code.
 * @return code
 */
STATIC_IN_RELEASE unsigned char MQRraw_getCode(MQRRawCode *raw)
{
    unsigned char ret;

    if (raw->count < raw->dataLength)
    {
        ret = raw->datacode[raw->count];
    }
    else if (raw->count < raw->dataLength + raw->eccLength)
    {
        ret = raw->ecccode[raw->count - raw->dataLength];
    }
    else
    {
        return 0;
    }
    raw->count++;
    return ret;
}

STATIC_IN_RELEASE void MQRraw_free(MQRRawCode *raw)
{
    if (raw != NULL)
    {
        free(raw->datacode);
        free(raw->ecccode);
        free(raw->rsblock);
        free(raw);
    }
}

/******************************************************************************
 * Frame filling
 *****************************************************************************/

typedef struct
{
    int            width;
    unsigned char *frame;
    int            x, y;
    int            dir;
    int            bit;
    int            mqr;
} FrameFiller;

static void FrameFiller_set(FrameFiller *filler, int width,
                            unsigned char *frame, int mqr)
{
    filler->width = width;
    filler->frame = frame;
    filler->x     = width - 1;
    filler->y     = width - 1;
    filler->dir   = -1;
    filler->bit   = -1;
    filler->mqr   = mqr;
}

static unsigned char *FrameFiller_next(FrameFiller *filler)
{
    unsigned char *p;
    int            x, y, w;

    if (filler->bit == -1)
    {
        filler->bit = 0;
        return filler->frame + filler->y * filler->width + filler->x;
    }

    x = filler->x;
    y = filler->y;
    p = filler->frame;
    w = filler->width;

    if (filler->bit == 0)
    {
        x--;
        filler->bit++;
    }
    else
    {
        x++;
        y += filler->dir;
        filler->bit--;
    }

    if (filler->dir < 0)
    {
        if (y < 0)
        {
            y = 0;
            x -= 2;
            filler->dir = 1;
            if (!filler->mqr && x == 6)
            {
                x--;
                y = 9;
            }
        }
    }
    else if (y == w)
    {
        y = w - 1;
        x -= 2;
        filler->dir = -1;
        if (!filler->mqr && x == 6)
        {
            x--;
            y -= 8;
        }
    }
    if (x < 0 || y < 0)
        return NULL;

    filler->x = x;
    filler->y = y;

    if (p[y * w + x] & 0x80)
    {
        // This tail recursion could be optimized.
        return FrameFiller_next(filler);
    }
    return &p[y * w + x];
}

#ifdef WITH_TESTS
unsigned char *FrameFiller_test(int version)
{
    int            width;
    unsigned char *frame, *p;
    int            i, length;
    FrameFiller    filler;

    width = QRspec_getWidth(version);
    frame = QRspec_newFrame(version);
    if (frame == NULL)
        return NULL;
    FrameFiller_set(&filler, width, frame, 0);
    length = QRspec_getDataLength(version, QR_ECLEVEL_L) * 8 +
             QRspec_getECCLength(version, QR_ECLEVEL_L) * 8 +
             QRspec_getRemainder(version);
    for (i = 0; i < length; i++)
    {
        p = FrameFiller_next(&filler);
        if (p == NULL)
        {
            free(frame);
            return NULL;
        }
        *p = (unsigned char)(i & 0x7f) | 0x80;
    }
    return frame;
}

unsigned char *FrameFiller_testMQR(int version)
{
    int            width;
    unsigned char *frame, *p;
    int            i, length;
    FrameFiller    filler;

    width = MQRspec_getWidth(version);
    frame = MQRspec_newFrame(version);
    if (frame == NULL)
        return NULL;
    FrameFiller_set(&filler, width, frame, 1);
    length = MQRspec_getDataLengthBit(version, QR_ECLEVEL_L) +
             MQRspec_getECCLength(version, QR_ECLEVEL_L) * 8;
    for (i = 0; i < length; i++)
    {
        p = FrameFiller_next(&filler);
        if (p == NULL)
        {
            fprintf(stderr, "Frame filler run over the frame!\n");
            return frame;
        }
        *p = (unsigned char)(i & 0x7f) | 0x80;
    }
    return frame;
}
#endif

/******************************************************************************
 * QR-code encoding
 *****************************************************************************/

STATIC_IN_RELEASE QRcode *QRcode_new(int version, int width,
                                     unsigned char *data)
{
    QRcode *qrcode;

    qrcode = (QRcode *)malloc(sizeof(QRcode));
    if (qrcode == NULL)
        return NULL;

    qrcode->version = version;
    qrcode->width   = width;
    qrcode->data    = data;

    return qrcode;
}

void QRcode_free(QRcode *qrcode)
{
    if (qrcode != NULL)
    {
        free(qrcode->data);
        free(qrcode);
    }
}

STATIC_IN_RELEASE QRcode *QRcode_encodeMask(QRinput *input, int mask)
{
    int            width, version;
    QRRawCode *    raw;
    unsigned char *frame, *masked, *p, code, bit;
    int            i, j;
    QRcode *       qrcode = NULL;
    FrameFiller    filler;

    if (input->mqr)
    {
        errno = EINVAL;
        return NULL;
    }
    if (input->version < 0 || input->version > QRSPEC_VERSION_MAX)
    {
        errno = EINVAL;
        return NULL;
    }
    if (input->level > QR_ECLEVEL_H)
    {
        errno = EINVAL;
        return NULL;
    }

    raw = QRraw_new(input);
    if (raw == NULL)
        return NULL;

    version = raw->version;
    width   = QRspec_getWidth(version);
    frame   = QRspec_newFrame(version);
    if (frame == NULL)
    {
        QRraw_free(raw);
        return NULL;
    }
    FrameFiller_set(&filler, width, frame, 0);

    /* interleaved data and ecc codes */
    for (i = 0; i < raw->dataLength; i++)
    {
        code = QRraw_getCode(raw);
        bit  = 0x80;
        for (j = 0; j < 8; j++)
        {
            p = FrameFiller_next(&filler);
            if (p == NULL)
                goto EXIT;
            *p  = ((bit & code) != 0);
            bit = bit >> 1;
        }
    }
    for (i = 0; i < raw->eccLength; i++)
    {
        code = QRraw_getCode(raw);
        bit  = 0x80;
        for (j = 0; j < 8; j++)
        {
            p = FrameFiller_next(&filler);
            if (p == NULL)
                goto EXIT;
            *p  = 0x02 | ((bit & code) != 0);
            bit = bit >> 1;
        }
    }
    QRraw_free(raw);
    raw = NULL;
    /* remainder bits */
    j = QRspec_getRemainder(version);
    for (i = 0; i < j; i++)
    {
        p = FrameFiller_next(&filler);
        if (p == NULL)
            goto EXIT;
        *p = 0x02;
    }

    /* masking */
    if (mask == -2)
    { // just for debug purpose
        masked = (unsigned char *)malloc((size_t)(width * width));
        memcpy(masked, frame, (size_t)(width * width));
    }
    else if (mask < 0)
    {
        masked = Mask_mask(width, frame, input->level);
    }
    else
    {
        masked = Mask_makeMask(width, frame, mask, input->level);
    }
    if (masked == NULL)
    {
        goto EXIT;
    }
    qrcode = QRcode_new(version, width, masked);
    if (qrcode == NULL)
    {
        free(masked);
    }

EXIT:
    QRraw_free(raw);
    free(frame);
    return qrcode;
}

STATIC_IN_RELEASE QRcode *QRcode_encodeMaskMQR(QRinput *input, int mask)
{
    int            width, version;
    MQRRawCode *   raw;
    unsigned char *frame, *masked, *p, code, bit;
    int            i, j, length;
    QRcode *       qrcode = NULL;
    FrameFiller    filler;

    if (!input->mqr)
    {
        errno = EINVAL;
        return NULL;
    }
    if (input->version <= 0 || input->version > MQRSPEC_VERSION_MAX)
    {
        errno = EINVAL;
        return NULL;
    }
    if (input->level > QR_ECLEVEL_Q)
    {
        errno = EINVAL;
        return NULL;
    }

    raw = MQRraw_new(input);
    if (raw == NULL)
        return NULL;

    version = raw->version;
    width   = MQRspec_getWidth(version);
    frame   = MQRspec_newFrame(version);
    if (frame == NULL)
    {
        MQRraw_free(raw);
        return NULL;
    }
    FrameFiller_set(&filler, width, frame, 1);

    /* interleaved data and ecc codes */
    for (i = 0; i < raw->dataLength; i++)
    {
        code = MQRraw_getCode(raw);
        bit  = 0x80;
        if (raw->oddbits && i == raw->dataLength - 1)
        {
            length = raw->oddbits;
        }
        else
        {
            length = 8;
        }
        for (j = 0; j < length; j++)
        {
            p = FrameFiller_next(&filler);
            if (p == NULL)
                goto EXIT;
            *p  = ((bit & code) != 0);
            bit = bit >> 1;
        }
    }
    for (i = 0; i < raw->eccLength; i++)
    {
        code   = MQRraw_getCode(raw);
        bit    = 0x80;
        length = 8;
        for (j = 0; j < length; j++)
        {
            p = FrameFiller_next(&filler);
            if (p == NULL)
                goto EXIT;
            *p  = 0x02 | ((bit & code) != 0);
            bit = bit >> 1;
        }
    }
    MQRraw_free(raw);
    raw = NULL;

    /* masking */
    if (mask == -2)
    { // just for debug purpose
        masked = (unsigned char *)malloc((size_t)(width * width));
        memcpy(masked, frame, (size_t)(width * width));
    }
    else if (mask < 0)
    {
        masked = MMask_mask(version, frame, input->level);
    }
    else
    {
        masked = MMask_makeMask(version, frame, mask, input->level);
    }
    if (masked == NULL)
    {
        goto EXIT;
    }

    qrcode = QRcode_new(version, width, masked);
    if (qrcode == NULL)
    {
        free(masked);
    }

EXIT:
    MQRraw_free(raw);
    free(frame);
    return qrcode;
}

QRcode *QRcode_encodeInput(QRinput *input)
{
    if (input->mqr)
    {
        return QRcode_encodeMaskMQR(input, -1);
    }
    else
    {
        return QRcode_encodeMask(input, -1);
    }
}

static QRcode *QRcode_encodeStringReal(const char *string, int version,
                                       QRecLevel level, int mqr,
                                       QRencodeMode hint, int casesensitive)
{
    QRinput *input;
    QRcode * code;
    int      ret;

    if (string == NULL)
    {
        errno = EINVAL;
        return NULL;
    }
    if (hint != QR_MODE_8 && hint != QR_MODE_KANJI)
    {
        errno = EINVAL;
        return NULL;
    }

    if (mqr)
    {
        input = QRinput_newMQR(version, level);
    }
    else
    {
        input = QRinput_new2(version, level);
    }
    if (input == NULL)
        return NULL;

    ret = Split_splitStringToQRinput(string, input, hint, casesensitive);
    if (ret < 0)
    {
        QRinput_free(input);
        return NULL;
    }
    code = QRcode_encodeInput(input);
    QRinput_free(input);

    return code;
}

QRcode *QRcode_encodeString(const char *string, int version, QRecLevel level,
                            QRencodeMode hint, int casesensitive)
{
    return QRcode_encodeStringReal(string, version, level, 0, hint,
                                   casesensitive);
}

QRcode *QRcode_encodeStringMQR(const char *string, int version, QRecLevel level,
                               QRencodeMode hint, int casesensitive)
{
    return QRcode_encodeStringReal(string, version, level, 1, hint,
                                   casesensitive);
}

static QRcode *QRcode_encodeDataReal(const unsigned char *data, int length,
                                     int version, QRecLevel level, int mqr)
{
    QRinput *input;
    QRcode * code;
    int      ret;

    if (data == NULL || length == 0)
    {
        errno = EINVAL;
        return NULL;
    }

    if (mqr)
    {
        input = QRinput_newMQR(version, level);
    }
    else
    {
        input = QRinput_new2(version, level);
    }
    if (input == NULL)
        return NULL;

    ret = QRinput_append(input, QR_MODE_8, length, data);
    if (ret < 0)
    {
        QRinput_free(input);
        return NULL;
    }
    code = QRcode_encodeInput(input);
    QRinput_free(input);

    return code;
}

QRcode *QRcode_encodeData(int size, const unsigned char *data, int version,
                          QRecLevel level)
{
    return QRcode_encodeDataReal(data, size, version, level, 0);
}

QRcode *QRcode_encodeString8bit(const char *string, int version,
                                QRecLevel level)
{
    if (string == NULL)
    {
        errno = EINVAL;
        return NULL;
    }
    return QRcode_encodeDataReal((unsigned char *)string, (int)strlen(string),
                                 version, level, 0);
}

QRcode *QRcode_encodeDataMQR(int size, const unsigned char *data, int version,
                             QRecLevel level)
{
    return QRcode_encodeDataReal(data, size, version, level, 1);
}

QRcode *QRcode_encodeString8bitMQR(const char *string, int version,
                                   QRecLevel level)
{
    if (string == NULL)
    {
        errno = EINVAL;
        return NULL;
    }
    return QRcode_encodeDataReal((unsigned char *)string, (int)strlen(string),
                                 version, level, 1);
}

/******************************************************************************
 * Structured QR-code encoding
 *****************************************************************************/

static QRcode_List *QRcode_List_newEntry(void)
{
    QRcode_List *entry;

    entry = (QRcode_List *)malloc(sizeof(QRcode_List));
    if (entry == NULL)
        return NULL;

    entry->next = NULL;
    entry->code = NULL;

    return entry;
}

static void QRcode_List_freeEntry(QRcode_List *entry)
{
    if (entry != NULL)
    {
        QRcode_free(entry->code);
        free(entry);
    }
}

void QRcode_List_free(QRcode_List *qrlist)
{
    QRcode_List *list = qrlist, *next;

    while (list != NULL)
    {
        next = list->next;
        QRcode_List_freeEntry(list);
        list = next;
    }
}

int QRcode_List_size(QRcode_List *qrlist)
{
    QRcode_List *list = qrlist;
    int          size = 0;

    while (list != NULL)
    {
        size++;
        list = list->next;
    }

    return size;
}

#if 0
static unsigned char QRcode_parity(const char *str, int size)
{
	unsigned char parity = 0;
	int i;

	for(i = 0; i < size; i++) {
		parity ^= str[i];
	}

	return parity;
}
#endif

QRcode_List *QRcode_encodeInputStructured(QRinput_Struct *s)
{
    QRcode_List *      head = NULL;
    QRcode_List *      tail = NULL;
    QRcode_List *      entry;
    QRinput_InputList *list = s->head;

    while (list != NULL)
    {
        if (head == NULL)
        {
            entry = QRcode_List_newEntry();
            if (entry == NULL)
                goto ABORT;
            head = entry;
            tail = head;
        }
        else
        {
            entry = QRcode_List_newEntry();
            if (entry == NULL)
                goto ABORT;
            tail->next = entry;
            tail       = tail->next;
        }
        tail->code = QRcode_encodeInput(list->input);
        if (tail->code == NULL)
        {
            goto ABORT;
        }
        list = list->next;
    }

    return head;
ABORT:
    QRcode_List_free(head);
    return NULL;
}

static QRcode_List *QRcode_encodeInputToStructured(QRinput *input)
{
    QRinput_Struct *s;
    QRcode_List *   codes;

    s = QRinput_splitQRinputToStruct(input);
    if (s == NULL)
        return NULL;

    codes = QRcode_encodeInputStructured(s);
    QRinput_Struct_free(s);

    return codes;
}

static QRcode_List *
QRcode_encodeDataStructuredReal(int size, const unsigned char *data,
                                int version, QRecLevel level, int eightbit,
                                QRencodeMode hint, int casesensitive)
{
    QRinput *    input;
    QRcode_List *codes;
    int          ret;

    if (version <= 0)
    {
        errno = EINVAL;
        return NULL;
    }
    if (!eightbit && (hint != QR_MODE_8 && hint != QR_MODE_KANJI))
    {
        errno = EINVAL;
        return NULL;
    }

    input = QRinput_new2(version, level);
    if (input == NULL)
        return NULL;

    if (eightbit)
    {
        ret = QRinput_append(input, QR_MODE_8, size, data);
    }
    else
    {
        ret = Split_splitStringToQRinput((char *)data, input, hint,
                                         casesensitive);
    }
    if (ret < 0)
    {
        QRinput_free(input);
        return NULL;
    }
    codes = QRcode_encodeInputToStructured(input);
    QRinput_free(input);

    return codes;
}

QRcode_List *QRcode_encodeDataStructured(int size, const unsigned char *data,
                                         int version, QRecLevel level)
{
    return QRcode_encodeDataStructuredReal(size, data, version, level, 1,
                                           QR_MODE_NUL, 0);
}

QRcode_List *QRcode_encodeString8bitStructured(const char *string, int version,
                                               QRecLevel level)
{
    if (string == NULL)
    {
        errno = EINVAL;
        return NULL;
    }
    return QRcode_encodeDataStructured((int)strlen(string),
                                       (unsigned char *)string, version, level);
}

QRcode_List *QRcode_encodeStringStructured(const char *string, int version,
                                           QRecLevel level, QRencodeMode hint,
                                           int casesensitive)
{
    if (string == NULL)
    {
        errno = EINVAL;
        return NULL;
    }
    return QRcode_encodeDataStructuredReal((int)strlen(string),
                                           (unsigned char *)string, version,
                                           level, 0, hint, casesensitive);
}

/******************************************************************************
 * System utilities
 *****************************************************************************/

void QRcode_APIVersion(int *major_version, int *minor_version,
                       int *micro_version)
{
    if (major_version != NULL)
    {
        *major_version = MAJOR_VERSION;
    }
    if (minor_version != NULL)
    {
        *minor_version = MINOR_VERSION;
    }
    if (micro_version != NULL)
    {
        *micro_version = MICRO_VERSION;
    }
}

char *QRcode_APIVersionString(void) { return VERSION; }

void QRcode_clearCache(void) { return; }
